"From the start of the year, everyone was kicking us," he said.
"We were outsiders, and we shielded ourselves away from everything and built some respect back. We were leading the comp after 12 weeks."
Merrin, who played 128 games over his six seasons at Wollongong, also said it was a personal goal to help the Red V rise re-join the league's elite.
Saturday's final against the Bulldogs was the club's first visit to September in the post-Wayne Bennett era.
"We've got teams turning around now and noticing us," Merrin said
"Especially getting into the finals, we haven't done that for the last four years.
"Me personally, it was one of my goals to get the club back to where it deserved to be."
Having entered the match as rank outsiders, McGregor felt his team had scored a moral victory.
"And even though we lost, we showed the right desire, attitude, commitment, resolve and courage - everything you want from a football team - and we fell short at the final hurdle," he said.
"But to me they've won. I'm talking to a different bunch of boys than I talked to 12 months ago."